Renewable

Just-in-time power that delivers. LiTime obviously strives to deliver a premium auxiliary power experience, with every product in this review feeling not only premium but also easy-to-use and reliable.

Rooftop solar meets battery storage. We got our hands on the new Bluetti SolarX 4K solar controller and inverter. Launching on September 22, 2025, the SolarX 4K is designed to handle much higher solar input voltages — up to 500 volts, perfect for larger rooftop systems. It converts that high voltage into levels suitable for battery storage units. We put it to the test to see if it actually delivers.

Over 800 W possible. With Stream, EcoFlow offers a powerful balcony power plant system that not only enables decentralized storage, but also legally bypasses the European limit of 800 W. Our EcoFlow Stream test reveals how this works and what the system can do.

Pro or not pro - that is the question here. With SolarFlow 800 and SolarFlow 800 Pro, Zendure offers two modular, expandable solutions for balcony power plants. We have not only tested the hybrid inverter and the all-in-one system, but also compared the two solutions with each other and revealed which one is suitable for whom.

With Magic Button. The Bluetti Apex 300 isn't just a typical mobile power station, it is designed as a battery storage system for the home or for off-grid self-sufficiency. It can handle up to 2,400 W of solar input energy on its own, or even more than 4 kW with the SolarX 4K converter, and is just the first in a whole series of expandable battery storage systems.

Far more than just a cooler for camping. The BougeRV Rocky 40 keeps your purchases cold during weekly grocery runs, supplies beach parties with ice-cold drinks, and even serves as a backup refrigerator. Thanks to its low power consumption and robust design, it is exceptionally versatile.